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US 12,752,239 B2Granted
Methods of dewatering of alcoholic solutions via forward osmosis and related systems
AssigneePorifera, Inc.
InventorsCharles Benton, Olgica Bakajin, Jennifer Klare, Ravindra Revanur
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Abstract
Embodiments described herein relate to methods and systems for dewatering alcoholic solutions via forward osmosis.
Claims20
A system for dewatering an alcoholic solution, the system comprising:
- a forward osmosis element including at least one selectively permeable forward osmosis membrane separating a first side of the forward osmosis element from a second side of the forward osmosis element;
- an alcohol solution in the first side, wherein the alcohol solution comprises ethanol, wherein ethanol is permeable across the forward osmosis membrane;
- and
- a draw solution in the second side, the draw solution having an alcohol concentration greater than the alcohol solution effective to cause the alcohol to remain in the alcohol solution.
1 more element
A method for dewatering an alcoholic solution comprising:
- introducing an alcohol solution into a first side of a forward osmosis element, wherein the alcohol solution comprises ethanol;
- circulating a draw solution through a second side of the forward osmosis element, the draw solution has an alcohol concentration greater than the alcohol solution;
- removing water from the alcohol solution to generate a diluted draw solution in the second side of the forward osmosis element via forward osmosis, the diluted draw solution having a higher water concentration than the draw solution;
- producing a product stream including a concentrated alcohol solution from the first side of the forward osmosis element, wherein ethanol in the alcohol solution is retained in the alcohol solution.
1 more element
Dependencies are inferred from the claim text.